Thinking you know it all.

认为自己是无所不知的。

youdao

Don't act like you know it all.

不要装得好象你懂得一切。

youdao

You are supposed to know it all!

您应该知道所有这些！

youdao

It is a slippery slope. And, we're not careful, before we know it all of us will be in a much more dire situation."

VOA: standard.2009.11.11

You know it all started when I was three."

这得从我三岁时说起“

哈佛公开课 - 幸福课课程节选

I don't know it all that well personally.

我个人知道的不是很多。

愉快的卡姆登的夜晚 - SpeakingMax英语口语达人

So I told him, 'You know it all, so go take care of yourself.

CNN: Are you an obnoxious patient?

No single group or individual can know it all and stay on top of it all.

FORBES: It's the End of an Era - Enter the Knowledgeable Networker

Knowledgeable networkers are very good at what they do, and at the same time, do not pretend to know it all.

FORBES: It's the End of an Era - Enter the Knowledgeable Networker